olds 455 question
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olds 455 question

  1. #1
    Junior Member
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    Default olds 455 question

    Quick question , I've got a 18' spectra jet berk jc-a with olds 455 mostly stock it's got a tunnel ram with 2 holly 650 vacuum secondary carbs. I'm thinking of a new cam and wondering what everyone else is using and secondly my secondary's do not open at WOT, can the carbs be tuned to work ? (I've heard vacuum secondary carbs don't work on jet boats.)

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  3. #2
    Senior Member DuaneHTP's Avatar
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    This could lead to a lengthy debate. Give me a call and I will help you.
    Duane HTP
    417-858-8616

  4. #3
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    Will do , I'm out of town in bidness . I'll give ya a Hollar when I get home

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  6. #4
    Senior Member jamesblown97's Avatar
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    junk the vacuum secondary carbs and put in mechanical in my honest opinion as far as cams that all depends on how deep your pockets are

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